“To a man with only a hammer every problem looks pretty much like a nail.”
The solution that works for one realm of life isn’t always the appropriate solution for other realm of life.
Often times when we find a way that works for something or we have been mastering our craft for years we tend to think/become habituated that it is the correct way for other things in life.
For example in Charlie Munger’s book Poor Charlie’s Almanack he tells about a professor at Yale Law School. “Poor old Eddie Blanchard, he thinks declaratory judgment will cure cancer.”